# EVCS: Switch between 1 and 3 phases

**URL:** <https://community.victronenergy.com/t/evcs-switch-between-1-and-3-phases/38736>\
**Category:** EVCS\
**Tags:** 3-phase, ev\_charger, evcs, ev\_charging\_station\
**Created:** [8 July 2025 07:17 UTC](https://community.victronenergy.com/t/evcs-switch-between-1-and-3-phases/38736 "2025-07-08T07:17:19Z")\
**Posts on this page:** 5\
**Page:** 1

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**Author:** ![rev](https://avatars.discourse-cdn.com/v4/letter/r/b5a626/32.png) [@rev](https://community.victronenergy.com/u/rev)\
**Post date:** [8 July 2025 07:17 UTC](https://community.victronenergy.com/t/evcs-switch-between-1-and-3-phases/38736/1 "2025-07-08T07:17:19Z")

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I have a 3x400V+N installation. I would like to be able to charge 1 phase or 3 phase depending on the need and available solar.

Could I add a contactors before the EVCS that turns on/off phases 2 and 3? Then depending on the need the EVCS will be powered with one phase or 3 phases.

If needed, I can make sure I stop the charging session between switching from 1 to 3 phases or other way around.

I understand I would need to write the logic myself in Node-RED.

Is this a viable setup?

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**Author:** ![M\_Lange](https://dub1.discourse-cdn.com/victron/user_avatar/community.victronenergy.com/m_lange/32/16_2.png) [@M\_Lange](https://community.victronenergy.com/u/M_Lange)\
**Post date:** [8 July 2025 08:01 UTC](https://community.victronenergy.com/t/evcs-switch-between-1-and-3-phases/38736/2 "2025-07-08T08:01:06Z")

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> [@Charging an EV with Excess Solar – Switching Between 1P and 3P](https://community.victronenergy.com/t/charging-an-ev-with-excess-solar-switching-between-1p-and-3p/21181):
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> Hi all, I have a Victron installation with a Multiplus II 5000, 3 MPPTs, a 48V ~15kWh battery, and 5000WP solar panels. Our goal is to keep the grid at 0W import/export across our 3P grid connection, and overall, this works quite well. I’m really happy with my choice for Victron. Recently, I added an NS EV charger (along with an EV ;)), expecting to be able to charge my car directly from excess solar power. However, I ran into an issue: The EV charger is connected 3P, and the minimum chargin…

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**Author:** ![rev](https://avatars.discourse-cdn.com/v4/letter/r/b5a626/32.png) [@rev](https://community.victronenergy.com/u/rev)\
**Post date:** [8 July 2025 08:41 UTC](https://community.victronenergy.com/t/evcs-switch-between-1-and-3-phases/38736/3 "2025-07-08T08:41:19Z")

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Wow, this is awesome! I was not expecting this. Have to get an NS charger now.

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**Author:** ![Lpopescu](https://dub1.discourse-cdn.com/victron/user_avatar/community.victronenergy.com/lpopescu/32/113_2.png) [@Lpopescu](https://community.victronenergy.com/u/Lpopescu)\
**Post date:** [8 July 2025 09:57 UTC](https://community.victronenergy.com/t/evcs-switch-between-1-and-3-phases/38736/4 "2025-07-08T09:57:15Z")

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On both NS and screen version it works

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**Author:** ![system](https://europe1.discourse-cdn.com/victron/original/1X/21a9a7b5db7c6339715f993568736a7053199995.png) [@system](https://community.victronenergy.com/u/system)\
**Post date:** [22 July 2025 09:57 UTC](https://community.victronenergy.com/t/evcs-switch-between-1-and-3-phases/38736/5 "2025-07-22T09:57:58Z")

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